1-(3-Azetidinyl)-3,3-difluoro-Pyrrolidine dihydrochloride; 1-(Azetidin-3-yl)-3,3-difluoropyrrolidine dihydrochloride; 3-(3,3-Difluoropyrrolidin-1-yl)azetidine dihydrochloride, 3-(3,3-Difluoropyrrolidin-1-yl)azetane dihydrochloride; Pyrrolidine, 1-(3-azetidinyl)-3,3-difluoro-, hydrochloride (1:2);